van Loenen, B.; Zuiderwijk, A. .; Vancauwenberghe, G.; Lopez-Pellicer, F. J. .; Mulder, I.; Alexopoulos, C. .; Magnussen, R.; Saddiqa, M.; Dulong de Rosnay, M.; Crompvoets, J.; Polini, A.; Re, B.; Casiano Flores, C. Towards Value-Creating and Sustainable Open Data Ecosystems: A Comparative Case Study and a Research Agenda. JeDEM 2021, 13, 1-27.